JPS62263494A - Nuclear-reactor fuel aggregate - Google Patents
Nuclear-reactor fuel aggregateInfo
- Publication number
- JPS62263494A JPS62263494A JP62104190A JP10419087A JPS62263494A JP S62263494 A JPS62263494 A JP S62263494A JP 62104190 A JP62104190 A JP 62104190A JP 10419087 A JP10419087 A JP 10419087A JP S62263494 A JPS62263494 A JP S62263494A
- Authority
- JP
- Japan
- Prior art keywords
- wrapper tube
- fuel assembly
- reactor fuel
- longitudinal axis
- wrapper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003758 nuclear fuel Substances 0.000 title claims description 33
- 239000000446 fuel Substances 0.000 claims description 33
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 239000002826 coolant Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/322—Means to influence the coolant flow through or around the bundles
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
- G21C3/324—Coats or envelopes for the bundles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、燃料棒がその外管の外周面にスペーサリブを
有しており、互いに平行に並べられた燃料棒がそれらを
包囲するラッパー管によって緻密なパンクの形に結合さ
れているような原子炉燃料集合体に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a wrapper tube in which the fuel rods have spacer ribs on the outer peripheral surface of the outer tube, and the fuel rods are arranged parallel to each other and surround them. Reactor fuel assemblies such as those that are joined in the form of a dense puncture by.
一般にかかる原子炉燃料集合体は、例えばドイツ連邦共
和国特許出願公開第３００９９３７号公報で知られてい
るように、加圧水形のいわゆる高転換炉に対して設計さ
れている。燃料棒の外管にあるスペーサリブはこの原子
炉燃料集合体において隣接する燃料欅間の間隔を決定し
、特に燃料棒を密集して配置する場合、２本の燃料棒の
間にウェブを介在する格子伏スペーサよりも好適である
。Such nuclear reactor fuel assemblies are generally designed for so-called high conversion reactors of the pressurized water type, as is known, for example, from DE 30 09 937 A1. The spacer ribs on the outer tubes of the fuel rods determine the spacing between adjacent fuel tubes in this reactor fuel assembly, and especially when the fuel rods are arranged closely, a web may be interposed between the two fuel rods. This is more suitable than a lattice spacer.
格子伏スペーサが存在しないので、一般にこの原子炉燃
料集合体の横断面形状はラッパー管によって幾何学的に
正確にされ、原子炉燃料集合体の組立完了後において安
定して固定されねばならない。Since there are no lattice spacers, the cross-sectional shape of the reactor fuel assembly must generally be made geometrically accurate by the wrapper tube and stably fixed after assembly of the reactor fuel assembly is completed.
しかもかかるラッパー管は一体部材で作られる。Moreover, such wrapper tubes are made of one piece.
しかしこのラッパー管が長くなればなる程、その横断面
形状が大きくなればなる程、その製作の際において必要
な公差を保つことが困難となる。However, the longer the wrapper tube and the larger its cross-sectional shape, the more difficult it becomes to maintain the necessary tolerances during its manufacture.
本発明の目的は、原子炉燃料集合体の製作および特に原
子炉燃料集合体のラッパー管における公差の維持を容易
にすることにある。It is an object of the present invention to facilitate the fabrication of nuclear reactor fuel assemblies and, in particular, the maintenance of tolerances in the wrapper tubes of nuclear reactor fuel assemblies.
本発明によればこの目的は、特許請求の範囲第１項の特
徴部分に記載した手段によって達成できる。According to the invention, this object is achieved by the measures specified in the characterizing part of claim 1.
ラッパー管の安定性および原子炉燃料集合体の修理可能
性に関する本発明の原子炉燃料集合体のを利な実施態様
は、特許請求の範囲の実施態様項に記載しである。Advantageous embodiments of the reactor fuel assembly according to the invention with respect to the stability of the wrapper tube and the repairability of the reactor fuel assembly are set out in the embodiment section of the patent claims.
以下図面に示した実施例を参照して本発明の詳細な説明
する。The present invention will be described in detail below with reference to embodiments shown in the drawings.
第１図から第５図における原子炉燃料集合体は頭部２と
脚部３とを有している。８部２は第２図において燃料棒
および制御棒案内管なしに一部断面平面図で示されてお
り、第４図は脚部３を断面図で示している０頭部２およ
び脚部３の横断面形状は、原子炉燃料集合体において互
いに一直線に並ぶ合間の正六角形をしている。The nuclear reactor fuel assembly in FIGS. 1 to 5 has a head 2 and a leg 3. The reactor fuel assembly shown in FIGS. 8 Section 2 is shown in partially sectional plan view without fuel rods and control rod guide tubes in FIG. 2, and FIG. 4 shows leg section 3 in section. The cross-sectional shape of the reactor fuel assembly is a regular hexagon between lines in the reactor fuel assembly.
更に原子炉燃料集合体は頭部２と１部１１部３との間に
ラッパー管４を有し、その断面形状は第３図に示したよ
うに頭部２および脚部３の横断面形状と合同の正六角形
をしており、これは頭部２および脚部３の横断面形状と
一直線に並んでいる。Furthermore, the reactor fuel assembly has a wrapper tube 4 between the head 2 and the first part 11 part 3, and its cross-sectional shape is the same as the cross-sectional shape of the head 2 and the leg 3 as shown in FIG. It has a regular hexagonal shape congruent with , and is aligned with the cross-sectional shapes of the head 2 and legs 3.
ラッパー管４はその横断面を形成する六角形の角で互い
に当接するプレート５．６カ７ら構成されている。これ
らの互いに当接するプレート５．６はラッパー管４の長
手方向に、その横に即ちラフバー管円周側に隣接する別
のプレート５．６に対してずれている。The wrapper tube 4 is composed of plates 5, 6 and 7 that abut each other at the hexagonal corners forming its cross section. These mutually abutting plates 5.6 are offset in the longitudinal direction of the wrapper tube 4 with respect to another plate 5.6 that adjoins it laterally, ie on the circumferential side of the rough bar tube.
ラッパー管４の内部において、その横断面の正六角形の
角に、それぞれラッパー管４（ｐ長手方向に延びる支持
膨出部７が形成されている。各支持膨出部７には貫通孔
８があり、この孔８はラッパー管４の横断面形状を形成
する正六角形の中心における原子炉燃料集合体の長手軸
心９に対して平行している。これらの貫通孔８には通し
ボルトとして締付はボルト１０が貫通しており、このボ
ルト１０はナツト１１１によって燃料集合体脚部３に固
定されている０通しボルト１０はプレート５゜６並びに
頭部２および脚部３を互いに結合している。Inside the wrapper tube 4, support bulges 7 extending in the longitudinal direction of the wrapper tube 4 (p) are formed at the corners of a regular hexagon in its cross section. Each support bulge 7 has a through hole 8. These holes 8 are parallel to the longitudinal axis 9 of the reactor fuel assembly at the center of the regular hexagon that forms the cross-sectional shape of the wrapper tube 4. A bolt 10 passes through the attachment, and this bolt 10 is fixed to the fuel assembly leg 3 by a nut 111. The 0-through bolt 10 connects the plate 5.6, the head 2, and the leg 3 to each other. There is.
第３図および第５図ないし第７図から理解できるように
、プレート５．６従ってラッパー管４は内側面に細長い
支持リプ１１を有し、これらの支持リブ１１は相互にお
よび原子炉燃料集合体の長手軸心９に対して平行してい
る。これらの支持リプ１１はラッパー管４の内部に向か
って細くなっており、その横断面形状は両側が６０°の
角度をした台形をしている。それぞれ２個の支持リプ１
１の間ないしは支持リプ１１と支持膨出部７との間には
、相応した細長い窪み１２があり、これらの窪み１２は
相互におよび原子炉燃料集合体の長手軸心９に対して平
行している。As can be seen from FIGS. 3 and 5 to 7, the plate 5.6 and therefore the wrapper tube 4 has elongated support lips 11 on its inner side, which support ribs 11 are connected to each other and to the reactor fuel assembly. It is parallel to the longitudinal axis 9 of the body. These support lips 11 taper toward the inside of the wrapper tube 4, and their cross-sectional shape is trapezoidal with angles of 60° on both sides. 2 support reps 1 each
1 or between the support lip 11 and the support bulge 7 there are corresponding elongated depressions 12, which are parallel to each other and to the longitudinal axis 9 of the reactor fuel assembly. ing.
第３図および第４図から理解できるように、原子炉燃料
集合体の長手軸心９に対して直角の平面内には直線群１
３．１４を想定することができ、その内の直線群１３は
ラッパー管４の横断面を形成する正六角形の一辺に対し
て平行に延びており、他方の直線群１４はその辺に直接
に続く別の辺に対して平行に延びている。各直線群１３
．１４は窪み１２の中心において始まり且つ終えている
。As can be understood from FIGS. 3 and 4, there is a group of straight lines 1 in a plane perpendicular to the longitudinal axis 9 of the reactor fuel assembly.
3.14, in which the straight line group 13 extends parallel to one side of the regular hexagon forming the cross section of the wrapper tube 4, and the other straight line group 14 extends directly to that side. It extends parallel to the next side. Each straight line group 13
．． 14 begins and ends at the center of the depression 12.
直線群１３．１４の交点は燃料棒１５および制御棒案内
管１６の位置を規定し、これらは相互におよび原子炉燃
料集合体の長手軸心９に対して平行にラッパー管４の内
部において六角形の緻密なパックの形に締め付は結合さ
れる。各燃料棒１５はその外管の外側面にスパイラル状
に延びるスペーサリブ１７を有している。各燃料棒１５
はその下端で脚部３における貫通開口に係合し、そこで
ナンド１８によって締め付は固定される。各制御棒案内
管１６は上端が燃料集合体頭部２における貫通開口に係
合し、下端が燃料集合体脚部３にある貫通開口に係合し
、そこで制御棒案内管は同様にナツト１９で締め付は固
定される。The intersection of the straight lines 13, 14 defines the position of the fuel rods 15 and the control rod guide tubes 16, which are arranged six times inside the wrapper tube 4 parallel to each other and to the longitudinal axis 9 of the reactor fuel assembly. The fastening is combined into a square dense pack shape. Each fuel rod 15 has a spirally extending spacer rib 17 on the outer surface of its outer tube. Each fuel rod 15
engages with its lower end into a through opening in the leg 3, where the clamping is fixed by the nand 18. Each control rod guide tube 16 engages at its upper end in a through opening in the fuel assembly head 2 and at its lower end in a through opening in the fuel assembly leg 3, where the control rod guide tubes likewise engage in a through opening in the fuel assembly leg 3. The tightening is fixed.
ラッパー管４の内側面において各窪み１２に燃料棒１５
が配置されている。各支持膨出部７はラッパー管４の内
部に、それがほぼ燃料棒１５の横断面と同じになるまで
突出している。支持膨出部７はその丸められた外側面で
隣接する３本の燃料棒１５に対する支持面を形成してい
る。A fuel rod 15 is placed in each recess 12 on the inner surface of the wrapper tube 4.
is located. Each support bulge 7 projects into the interior of the wrapper tube 4 until it is approximately coextensive with the cross section of the fuel rod 15. The support bulge 7 forms a support surface for three adjacent fuel rods 15 with its rounded outer surface.
支持リプ１１はプレート５．６の自由に接近できる表面
にあるので、これらは非常に容易に切削加工、放電加工
あるいは電解加工によって形成できる。Since the support lips 11 are on the freely accessible surface of the plate 5.6, they can be formed very easily by machining, electrical discharge machining or electrolytic machining.
更に支持リプ１１は次のように寸法づけられている。即
ち原子炉燃料集合体におけるラッパー管４の内側におけ
る各燃料棒１５に対応した冷却材チャネルの横断面積が
、別の燃料棒１５に対応した冷却材チャネルの横断面積
と少なくともほぼ同じであるように寸法づけられている
。これによって原子炉において、ラッパー管４の内側に
おける燃料棒１５が別の燃料棒１５に対して大きく異な
って冷却されることは避けられる。このような大きく異
なった冷却は、ラッパー管４の内側における燃料棒１５
を熱的にゆがめてしまおそれがある。Furthermore, the supporting lip 11 is dimensioned as follows. That is, the cross-sectional area of the coolant channel corresponding to each fuel rod 15 inside the wrapper tube 4 in the reactor fuel assembly is at least approximately the same as the cross-sectional area of the coolant channel corresponding to another fuel rod 15. Dimensioned. This prevents the fuel rods 15 inside the wrapper tube 4 from being cooled significantly differently relative to other fuel rods 15 in the nuclear reactor. This significantly different cooling is caused by the fact that the fuel rods 15 inside the wrapper tube 4
may be thermally distorted.
支持膨出部７は特に第６図および第７図から理解できる
ように、各プレート５．６における長辺にある張出部２
０．２１によって形成されている。The supporting bulges 7, as can be seen in particular from FIGS. 6 and 7, correspond to the bulges 2 on the long sides of each plate 5.6.
0.21.
その都度横に隣接する２枚のプレート５．６に張出部２
０．２１があり、これらの張出部２０，２１はラッパー
管４従って原子炉燃料集合体の長手軸心９の方向に互い
にずれており、互いに蝶番状にかみ合い、通しボルト１
０に対する通しの貫通孔８を形成する。In each case, the overhang 2 is attached to two adjacent plates 5.6.
0.21, these overhangs 20, 21 are offset from each other in the direction of the wrapper tube 4 and therefore the longitudinal axis 9 of the reactor fuel assembly, and are hinged to each other, and the through bolts 1
A through hole 8 is formed through the hole 8.
更にプレート５．６の長辺に張出部２２．２３が設けら
れている。横に隣接する２枚のプレート５．６において
２個の張出部２２．２３は互いに接している。従って張
出部２２．２３はそこに存在する支持膨出部７の構成部
分であり、同様にその接触面２４．２５でそこにある通
しボルト１０に対する貫通孔８を形成する。これによっ
て通しボルト１０で締め付は結合されたラッパー管４は
特に安定する。Furthermore, an overhang 22.23 is provided on the long side of the plate 5.6. In two laterally adjacent plates 5.6, the two projections 22.23 are in contact with each other. The bulge 22.23 is thus a component of the supporting bulge 7 present there and likewise forms at its contact surface 24.25 a through hole 8 for the through bolt 10 present there. This makes the wrapper tube 4, which is fastened and connected with the through bolt 10, particularly stable.
張出部２２．２３の接触面２４．２５は好適にはラッパ
ー管４の横断面形伏を形成する正六角形の中心における
ラッパー管４従って原子炉燃料集合体の長手軸心９と同
じ平面にあるので、プレート５．６は、それらの張出部
２０．２１；２２゜２３を貫通する通しボルト１０を緩
めて取り外した後、ラッパー管４から取り出せる。ラッ
パー管４内にある燃料棒１５は、燃料集合体脚部３のナ
ツト１８．１９を除去した後で取り外し、破損した燃料
棒１５はラッパー管４から原子炉燃料集合体の長手軸心
９の方向に引き出し、新しい燃料棒１５あるいは檎燃料
物質を含んでいない模擬燃料棒によって置き換えること
ができる程十分大きな公差を有する。The contact surface 24.25 of the bulge 22.23 is preferably in the same plane as the wrapper tube 4 and thus the longitudinal axis 9 of the reactor fuel assembly at the center of the regular hexagon forming the cross-sectional shape of the wrapper tube 4. The plates 5.6 can then be removed from the wrapper tube 4 after loosening and removing the through-bolts 10 passing through their projections 20.21; 22.23. The fuel rod 15 located in the wrapper tube 4 is removed after removing the nuts 18, 19 of the fuel assembly leg 3, and the damaged fuel rod 15 is removed from the wrapper tube 4 to the longitudinal axis 9 of the reactor fuel assembly. Tolerances are large enough to permit the fuel rods 15 to be pulled out and replaced by new fuel rods 15 or by simulated fuel rods that do not contain fuel material.
′ 第１図は本発明に基づく原子炉燃料集合体の側
面図、第２図は第１図における■−■線に沿った断面図
、第３図は第１図における■−■線に沿うた断面図、第
４図は第１図におけるＩＶ−ＩＶ線に沿った断面図、第
５図は第３図の部分Ｖの拡大詳細図、第６図および第７
図は第１図から第５図における原子炉燃料集合体の部品
の斜視図である。
４ニラツバ−管、５．６：プレート、７：支持膨出部、
８：貫通孔、９：長手軸心、１０：通しボルト、１５：
燃料棒、２０〜２３：張出部、２４．２５：接触面。
（６１１Ｂ１ ｆｃ理人臂−士富村 潔 ・ｔ・、５．
゛−：' Figure 1 is a side view of a nuclear reactor fuel assembly based on the present invention, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, and Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1. 4 is a sectional view taken along line IV-IV in FIG. 1, FIG. 5 is an enlarged detailed view of portion V in FIG. 3, and FIGS.
The figure is a perspective view of the parts of the nuclear reactor fuel assembly in FIGS. 1 to 5. 4 Niratuba tube, 5.6: plate, 7: support bulge,
8: Through hole, 9: Longitudinal axis, 10: Through bolt, 15:
Fuel rod, 20-23: overhang, 24.25: contact surface. (611B1 fc Rijin Hajime - Shifumura Kiyoshi, t., 5.
゛-:
Claims (1)
おり、互いに平行に並べられた燃料棒がそれらを包囲す
るラッパー管によって緻密なパックの形に結合されてい
るような原子炉燃料集合体において、ラッパー管（４）
の横断面形状が正多角形であり、ラッパー管（４）の内
部にその正多角形の角にそれぞれラッパー管（４）の長
手軸心（９）に対して平行に延びる支持膨出部（７）が
形成され、ラッパー管（４）が複数のプレート（５、６
）から構成され、これらのプレート（５、６）が前記正
多角形の角で互いに当接しその内の一方がラッパー管（
４）の長手軸心（９）の方向において横に即ち周方向に
隣接する他方のプレートに対してずれており、前記プレ
ート（５、６）が支持膨出部（７）の中を燃料棒（１５
）の長手軸心およびラッパー管（４）の長手軸心（９）
に対して平行に貫通された通しボルト（１０）によって
結合されていることを特徴とする原子炉燃料集合体。 ２）支持膨出部（７）の構成部分が張出部（２０、２１
）であり、それぞれ横に隣接する２枚のプレート（５、
６）における張出部（２０、２１）が互いにずれており
、ラッパー管（４）の長手軸心（９）に対して平行な通
しボルト（１０）用の貫通孔（８）を有していることを
特徴とする特許請求の範囲第１項記載の原子炉燃料集合
体。 ３）支持膨出部（７）の構成部分が互いに接する２個の
張出部（２２、２３）であり、これらはそれぞれ横に隣
接する２枚のプレート（５、６）のそれぞれにあり、接
触面（２４、２５）において一緒にラッパー管（４）の
長手軸心（９）に対して平行な通しボルト（１０）用の
貫通孔（８）を形成することを特徴とする特許請求の範
囲第１項記載の原子炉燃料集合体。 ４）両方の張出部（２２、２３）が接触面（２４、２５
）で互いに接触し、これらの接触面（２４、２５）がラ
ッパー管（４）の横断面形状を形成する正多角形の中心
におけるラッパー管（４）の長手軸心（９）と同じ平面
内にあることを特徴とする特許請求の範囲第３項記載の
原子炉燃料集合体。 ５）ラッパー管（４）の横断面形状が正六角形であるこ
とを特徴とする特許請求の範囲第１項記載の原子炉燃料
集合体。[Claims] 1) The fuel rods have spacer ribs on the outer peripheral surface of their outer tubes, and the fuel rods arranged parallel to each other are connected in a dense pack shape by a wrapper tube surrounding them. In nuclear fuel assemblies such as
has a regular polygonal cross-sectional shape, and inside the wrapper tube (4) there are support bulges () extending parallel to the longitudinal axis (9) of the wrapper tube (4) at each corner of the regular polygon. 7) is formed and the wrapper tube (4) is connected to the plurality of plates (5, 6).
), these plates (5, 6) abut each other at the corners of the regular polygon, one of which is connected to the wrapper tube (
4) offset in the direction of the longitudinal axis (9) with respect to the other laterally or circumferentially adjacent plate, said plates (5, 6) supporting the fuel rod in the supporting bulge (7); (15
) and the longitudinal axis (9) of the wrapper tube (4)
A nuclear reactor fuel assembly, characterized in that it is joined by a through bolt (10) passed through in parallel to the reactor fuel assembly. 2) The constituent parts of the support bulge (7) are the bulges (20, 21).
), and two horizontally adjacent plates (5,
The overhangs (20, 21) in 6) are offset from each other and have a through hole (8) for a through bolt (10) parallel to the longitudinal axis (9) of the wrapper tube (4). A nuclear reactor fuel assembly according to claim 1, characterized in that: 3) The supporting bulge (7) has two overhangs (22, 23) in contact with each other, each of which is located on each of the two laterally adjacent plates (5, 6); Claim characterized in that in the contact surfaces (24, 25) together they form a through hole (8) for a through bolt (10) parallel to the longitudinal axis (9) of the wrapper tube (4). A nuclear reactor fuel assembly according to scope 1. 4) Both overhangs (22, 23) contact surfaces (24, 25)
) in the same plane as the longitudinal axis (9) of the wrapper tube (4) at the center of a regular polygon whose contact surfaces (24, 25) form the cross-sectional shape of the wrapper tube (4). A nuclear reactor fuel assembly according to claim 3, characterized in that: 5) The nuclear reactor fuel assembly according to claim 1, wherein the cross-sectional shape of the wrapper tube (4) is a regular hexagon.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3614910.1 | 1986-05-02 | ||
| DE3614910 | 1986-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62263494A true JPS62263494A (en) | 1987-11-16 |
Family
ID=6300037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62104190A Pending JPS62263494A (en) | 1986-05-02 | 1987-04-27 | Nuclear-reactor fuel aggregate |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0243824B1 (en) |
| JP (1) | JPS62263494A (en) |
| DE (1) | DE3763621D1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE586969A (en) * | 1959-01-29 | |||
| US3767525A (en) * | 1972-10-06 | 1973-10-23 | Atomic Energy Commission | Irradiation subassembly |
| GB1598330A (en) * | 1977-09-20 | 1981-09-16 | Atomic Energy Authority Uk | Fuel sub-assemblies for nuclear reactors |
| SE424929B (en) * | 1980-12-19 | 1982-08-16 | Asea Atom Ab | FUEL CARTRIDGE INTENDED FOR A COOK WATER REACTOR |
-
1987
- 1987-04-16 DE DE8787105711T patent/DE3763621D1/en not_active Expired - Fee Related
- 1987-04-16 EP EP87105711A patent/EP0243824B1/en not_active Expired - Lifetime
- 1987-04-27 JP JP62104190A patent/JPS62263494A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0243824B1 (en) | 1990-07-11 |
| DE3763621D1 (en) | 1990-08-16 |
| EP0243824A1 (en) | 1987-11-04 |
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